/Engine/Plugins/Online/OnlineSubsystemUtils/Source/OnlineSubsystemUtils/Public/SpectatorBeaconState.h
Add a reservation to the beacon state, tries to assign a team
true if successful, false otherwise
virtual bool AddReservation ( const [FSpectatorReservation](API\Plugins\OnlineSubsystemUtils\FSpectatorReservation) & ReservationRequest )